87 Result(s)
within
Chen Yu-**
Engineering
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Article
Open AccessFast Frequency Estimation by Zero Crossings of Differential Spline Wavelet Transform
Zero crossings or extrema of a wavelet transform constitute important signatures for signal analysis with the advantage of great simplicity. In this paper, we introduce a fast frequency-estimation method based...
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Open AccessSpace-Time Joint Interference Cancellation Using Fuzzy-Inference-Based Adaptive Filtering Techniques in Frequency-Selective Multipath Channels
An adaptive minimum mean-square error (MMSE) array receiver based on the fuzzy-logic recursive least-squares (RLS) algorithm is developed for asynchronous DS-CDMA interference suppression in the presence of fr...
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Article
Open AccessMotion Entropy Feature and Its Applications to Event-Based Segmentation of Sports Video
An entropy-based criterion is proposed to characterize the pattern and intensity of object motion in a video sequence as a function of time. By applying a homoscedastic error model-based time series change poi...
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Open AccessMicrofluidic cell sorter with integrated piezoelectric actuator
We demonstrate a low-power (<0.1 mW), low-voltage (<10 Vp-p) on-chip piezoelectrically actuated micro-sorter that can deflect single particles and cells at high-speed. With rhodamine in the stream, switching of f...
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Open AccessEvaluation of the diagnostic performance of infrared imaging of the breast: a preliminary study
The study was conducted to investigate the diagnostic performance of infrared (IR) imaging of the breast using an interpretive model derived from a scoring system.
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Open AccessMeasurement of intrinsic optical backscattering characteristics of cells using fiber-guided near infrared light
Intrinsic optical signals (IOS), which reflect changes in transmittance and scattering light, have been applied to characterize the physiological conditions of target biological tissues. Backscattering approac...
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Article
Open AccessA Bayesian Analysis for Identifying DNA Copy Number Variations Using a Compound Poisson Process
To study chromosomal aberrations that may lead to cancer formation or genetic diseases, the array-based Comparative Genomic Hybridization (aCGH) technique is often used for detecting DNA copy number variants (...
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Open AccessExtremal Optimization Combined with LM Gradient Search for MLP Network Learning
Gradient search based neural network training algorithm may suffer from local optimum, poor generalization and slow convergence. In this study, a novel Memetic Algorithm based hybrid method with the integratio...
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Article
Open AccessQuantitative pinch stimulator for exploring evoked nociceptive responses: A pilot study
A mechanical noxious stimulator is useful for studies of pain, both for clinic and basic research. We propose to use a pinch stimulator that can not only generate a quantitative, reproducible noxious pinch but...
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Article
Open AccessAutomatic detection of the carotid artery boundary on cross-sectional MR image sequences using a circle model guided dynamic programming
Systematic aerobe training has positive effects on the compliance of dedicated arterial walls. The adaptations of the arterial structure and function are associated with the blood flow-induced changes of the w...
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Article
Open AccessQuantification and recognition of parkinsonian gait from monocular video imaging using kernel-based principal component analysis
The computer-aided identification of specific gait patterns is an important issue in the assessment of Parkinson's disease (PD). In this study, a computer vision-based gait analysis approach is developed to as...
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Open AccessPatient-oriented simulation based on Monte Carlo algorithm by using MRI data
Although Monte Carlo simulations of light propagation in full segmented three-dimensional MRI based anatomical models of the human head have been reported in many articles. To our knowledge, there is no patien...
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Article
Open AccessImprovement of classification accuracy in a phase-tagged steady-state visual evoked potential-based brain computer interface using multiclass support vector machine
Brain computer interface (BCI) is an emerging technology for paralyzed patients to communicate with external environments. Among current BCIs, the steady-state visual evoked potential (SSVEP)-based BCI has dra...
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Open AccessAn efficient framework for estimation of muscle fiber orientation using ultrasonography
Muscle fiber orientation (MFO) is an important parameter related to musculoskeletal functions. The traditional manual method for MFO estimation in sonograms was labor-intensive. The automatic methods proposed ...
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Open AccessA data mining approach for analyzing semiconductor MES and FDC data to enhance overall usage effectiveness (OUE)
Wafer fabrication is a complex and lengthy process that involves hundreds of process steps with monitoring numerous process parameters at the same time for yield enhancement. Big data is automatically collecte...
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Open AccessPrototype of biliary drug-eluting stent with photodynamic and chemotherapy using electrospinning
The combination of biliary stent with photodynamic and chemotherapy seemed to be a beneficial palliative treatment of unresectable cholangiocarcinoma. However, by intravenous delivery to the target tumor the d...
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Article
Open AccessVehicle color classification using manifold learning methods from urban surveillance videos
Color identification of vehicles plays a significant role in crime detection. In this study, a novel scheme for the color identification of vehicles is proposed using the locating algorithm of regions of inter...
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Article
Open AccessPackaging efficiency in phosphor-converted white LEDs and its impact to the limit of luminous efficacy
In this paper, we start from the study on the packaging efficiency of the phosphor-converted white LED via a new way to measure and calculate the blue light from the blue die to the encapsulation lens. Then we...
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Article
Open AccessThe Evidential Reasoning Approach to Medical Diagnosis using Intuitionistic Fuzzy Dempster-Shafer Theory
For medical diagnosis, fuzzy Dempster-Shafer theory is extended to model domain knowledge under probabilistic and fuzzy uncertainty. However, there are some information loss using discrete fuzzy sets and tradi...
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Ambient intelligence and ergonomics in Asia
